Nawid Kashani BASF SE, Germany
Austria’s gas quality regulation (ÖVGW G31) gives very strict specifications for the total sulfur content in natural gases to be fed into the national grid. In order to comply with these regulations, OMV asked BASF for a solvent that would be able to optimize their acid gas removal unit in this regard.
Within a record time of only 4 months the companies managed to conduct a study, to produce and transport the solvent to the site near Vienna and to start up the plant successfully. By doing so, OMV managed to implement the new solvent during a standard plant turnaround and therefore without losing any production time.
Achieving the desired total sulfur specification in the product gas stream from the beginning, BASF also conducted an on-site optimization, resulting in substantial energy savings.
The key factor for success was improved COS absorption by adding the new BASF solvent. Moreover BASF’s process simulation tool giving precise predictions together with OMV’s plant experience allowed for a professional plant optimization. As a result, the process is not only suitable for conventional but also unconventional gas containing sulphur components
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